Yoshihisa Okita

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for driving switching element in power converter
- Patent number 6,614,667
- Issue date Sep 2, 2003
- TDK Corporation
- Kazuyuki Itoh
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion apparatus utilizing soft switching resonant snubbe...
- Patent number 6,438,004
- Issue date Aug 20, 2002
- TDK Corporation
- Katsuaki Tanaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Driving device and method of switching element in power conversion...
- Patent number 6,414,854
- Issue date Jul 2, 2002
- TDK Corporation
- Kazuyuki Itoh
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching circuit of power conversion apparatus
- Patent number 6,353,543
- Issue date Mar 5, 2002
- TDK Corporation
- Kazuyuki Itoh
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Driving device of switching element in power conversion device usin...
- Patent number 6,351,107
- Issue date Feb 26, 2002
- TDK Corporation
- Yoshihisa Okita
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Magnetic sensor apparatus, current sensor apparatus and magnetic se...
- Patent number 6,323,634
- Issue date Nov 27, 2001
- TDK Corporation
- Shiro Nakagawa
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic sensor apparatus and current sensor apparatus
- Patent number 6,316,931
- Issue date Nov 13, 2001
- TDK Corporation
- Shiro Nakagawa
- G01 - MEASURING TESTING
Information Patent Grant
PWM inverter apparatus
- Patent number 6,208,541
- Issue date Mar 27, 2001
- TDK Corporation
- Kazuyuki Itoh
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Partial resonance PWM converter
- Patent number 6,172,882
- Issue date Jan 9, 2001
- TDK Corporation
- Katsuaki Tanaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric power conversion device
- Patent number 6,154,379
- Issue date Nov 28, 2000
- TDK Corporation
- Yoshihisa Okita
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Process for forming bipolar transistor structure
- Patent number 5,234,844
- Issue date Aug 10, 1993
- Oki Electric Industry Co., Inc.
- Yoshihisa Okita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for fabricating a semiconductor device
- Patent number 5,219,768
- Issue date Jun 15, 1993
- Oki Electric Industry Co., Ltd.
- Yoshihisa Okita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bi-polar transistor structure
- Patent number 4,974,045
- Issue date Nov 27, 1990
- Oki Electric Industry Co., Inc.
- Yoshihisa Okita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fabrication method for semiconductor integrated circuits
- Patent number 4,866,000
- Issue date Sep 12, 1989
- Oki Electric Industry Co., Ltd.
- Yoshihisa Okita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process of fabricating a semiconductor IC involving simultaneous sp...
- Patent number 4,749,663
- Issue date Jun 7, 1988
- Oki Electric Industry Co., Ltd.
- Yoshihisa Okita
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Power conversion apparatus
- Publication number 20020054499
- Publication date May 9, 2002
- TDK Corporation
- Katsuaki Tanaka
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Driving device and method of switching element in power conversion...
- Publication number 20020012253
- Publication date Jan 31, 2002
- Kazuyuki Itoh
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Switching circuit of power conversion apparatus
- Publication number 20010038540
- Publication date Nov 8, 2001
- Kazuyuki Itoh
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Yoshihisa Okita

Person

Patents Grantslast 30 patents

Method and apparatus for driving switching element in power converter

Power conversion apparatus utilizing soft switching resonant snubbe...

Driving device and method of switching element in power conversion...

Switching circuit of power conversion apparatus

Driving device of switching element in power conversion device usin...

Magnetic sensor apparatus, current sensor apparatus and magnetic se...

Magnetic sensor apparatus and current sensor apparatus

PWM inverter apparatus

Partial resonance PWM converter

Electric power conversion device

Process for forming bipolar transistor structure

Method for fabricating a semiconductor device

Bi-polar transistor structure

Fabrication method for semiconductor integrated circuits

Process of fabricating a semiconductor IC involving simultaneous sp...

Patents Applicationslast 30 patents

Power conversion apparatus

Driving device and method of switching element in power conversion...

Switching circuit of power conversion apparatus